Compress PDF
Reduce PDF file size while maintaining visual quality. Optimize large PDFs for faster email sharing, web uploads, or storage.
Privacy & Security
All files are processed locally in your browser. Your data never leaves your device and is not uploaded to any server. We do not store, collect, or have access to your files.
How It Works
- 1
Upload the PDF file you want to compress
- 2
Choose compression level (high quality, balanced, or maximum compression)
- 3
The tool optimizes images, removes redundancy, and compresses data
- 4
Download your compressed PDF with significantly reduced file size
Use Cases
Reduce file size for email attachments that exceed size limits
Optimize PDFs for faster website loading and better user experience
Save storage space when archiving large document collections
Prepare PDFs for mobile viewing with limited bandwidth
Compress presentation files for easier sharing and distribution
Frequently Asked Questions
How much can I reduce the file size?
Compression results vary by content. Image-heavy PDFs may reduce by 50-80%, while text-heavy documents show smaller reductions since text is already compressed.
Will compression affect PDF quality?
Compression is optimized to maintain visual quality while reducing file size. You can choose compression levels based on your quality vs. size needs.
Can I compress password-protected PDFs?
Yes, if you can open the PDF in your browser, it can be compressed. Password protection can be reapplied after compression if needed.
Is compression permanent?
Yes, the compressed PDF is a new file with optimized content. Always keep your original file if you might need the uncompressed version later.